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A088704
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a(n) equals the coefficient of x^n in f(x)^n where f(x)=1+sum(n>=0,x^(2^n)).
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0
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1, 1, 3, 7, 23, 71, 231, 743, 2431, 7999, 26563, 88683, 297551, 1002015, 3385175, 11466887, 38933183, 132454719, 451423203, 1540920939, 5267257103, 18027478847, 61770328227, 211872505243, 727411948351, 2499560376671
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OFFSET
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0,3
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LINKS
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FORMULA
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G.f.: A(x) = 1 + x*d/dx[log(g(x))], where g(x)=sum(n>=0, A075864(n)*x^n) and g(x)=f(x*g(x)), given f(x)=1+sum(n>=0, x^(2^n)).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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